Boat-detaching apparatus



(N0 Model.)

1V1. vWOGAN. BOAT DETAGHING APPARATUS.

Patented Mar. 3,1891.

in II! .1

WITNESSES:

ATTORNEY.

UNiTED ST TES PATENT Fries.

MICHAEL IVOGAN, OF CHESTER, PENNSYLVANIA.

BOAT-DETACHING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 447,421, dated March 3, 1891. Application filed October 3, 1890. Serial No. 366,935. (No model.)

To all whom it may concern:

Be it known that I, MICHAEL \VOGAN, a citizen of the United States, residing at Chester, in the county of Delaware and State of Pennsylvania, have invented certain new and useful Improvements in Boat-Detaching Apparatus, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention is an improved apparatus for detaching, hoisting, and lowering boats; and it consists in certain novel features hereinafter fully disclosed in the drawings, specification, and claims.

The object of my invention is to provide an improved device by the use of which the boat will be effectually secured when not in use, but may be easily released by the proper person after it has been lowered.

My invention also aims to simplify the construction without impairing the efficiency of devices of this class.

These objects I attain by the use of the mechanism illustrated in the accompanying drawings, in which Figure 1 is a side elevation of my improved apparatus at one end of the boat, the boat being. shown in section. Fig. 2 is a similar view showing the boat released, and Fig. 3 is -a detail sectional view.

In carrying out my invention I erect a standard A upon the keel of the boat near each end of the same, and this standard is of a sufficient height to extend above the timbers or thwarts of the boat. Near its upper end each standard is provided with a lateral extension or flange B, which is seated in the thwart, and through which securing-screws or other suitable retaining devices are passed into the thwarts to retain the standard in its proper position. The lower end of the standard may be secured to the keel in any preferred manner. Above the lateral extension or flange B the standard is formed into a fork or bifurcated support 0, as clearly shown.

The upper extremities of the fork C are turned slightly forward, and between these forwardly-turned ends I pivot the hookD, which is provided on its upper edge with the lateral ofisets E, adapted to impinge against the rear side of the standard,and thereby prevent the hook from being thrown too far edges of the fork.

bend, and its inner or rear end is provided with a notch or shoulder F, the purpose of which will be hereinafter set forth. The rearward motion of the inner end of the hook is limited by a stop G on the rear side of the pivotal end of the latch is round on its inner edge, as shown at J, to permit it to swing inward and allow the ring to engage the hook, while the outer edge of the pivotal end of the latch is straight, as shown at K, to prevent the said latch from being swung beyond the end of the hook. The free end of the latch is held normally against the end of the hook by a spring L, which is secured to the socket I and extends around the end of the latch to bear upon the inner side of the same.

Between the branches of the forkI arrange a sliding lock M, which is provided at its upper outer corner with a vertical projection N, adapted to engage the shoulder F of the hook and thereby prevent movement of the same, as will be readily understood upon reference to Fig. 3 of the drawings. This lock consists of a block-O, fitted between the branches of the fork and having lateral guides P at its rear side to engage the rear edges of the fork. A guide-plate Q is secured to the front side of the lock, and its edges extend beyond the sides of the same, so as to engage the front The lock will thus be held in position within the fork and willbe guided in its movements therein, while at the same time it can be easily removed for the purposes of cleansing or repairing.

To the rear side of the lock, at the lower end of the same, I secure the upper end of a pitmau R, the lower end of which is pivoted to a link S. The lower end of this link S is pivoted at one end of an angle-lever T, fulcrumed upon a standard U, erected upon the keel of the boat. In the drawings I have shown only one of the angle-levers;butitwill rearward, as 'shown most clearly in Fig. 2. The hook is pivoted at about the center of its be understood, of course, that the mechanism shown is repeated at the other end of the boat, the only diiference being that the anglelever is necessarily reversed. At the center of the boat I erect a standard V, to which I pivot the operating-lever \V, as shown. The lower end of the operating-lever is connected by links or connecting-rods X to the inner ends of the angle-levers, so as to transmit the motion imparted to the said operating-lever to the angle-levers and thence to the looks.

The construction and arrangement of the several parts of my device being thus made known, the operation and advantages of the I 5 same will be readily understood and appreciated. Vhen the boat is not in use, the rings suspended from the davits are engaged in the hooks, and the boat is thus supported by the said hooks. If it be desired to use the boat, the oarsmen and passengers enter the same and it is then lowered in the usual manner, the weight of the boat being thrown onto the rings and hooks. At the instant the boat is to be released the operating-lever is vi- 2 5 brated and the locks are thus lowered from engagement with the hooks, and consequently the weight of the boat and its inmates will cause the rings to slip from the hooks, as shown in Fig. 2, and detach the boat, the hooks 3o returning to their locking position. lVhen the boat is to be raised, the rings are engaged in the hooks and the boat is then raised in the usual manner.

It will be seen from the foregoing description, taken in connection with the accompanying drawings, that I have provided a very simple device by the use of which the boat may be easily and quickly raised and lowered and by which it will be securely 4o fastened when not in use.- The operatinglever is provided with a locking-pin, WhlCll may be of any desired form, so that it cannot be released by unwarranted or mischievous persons, and it is arranged at such a point of 4 5 the boat that the person controlling the rudder may operate the lever without losing control of the rudder. hen the locks are raised, the hooks are effectually prevented from swinging and the boat will thus be effectually held in place; but when the operating-lever is vibrated the locks are immediately lowered and the boat is then automatically released. The construct-ion of the tongue or latch is such that it will yield readily when the ring is being slipped into engagement with the hooks, but will not swing downward to permit the rings to be freed from the hooks. The hooks, furthermore, cannot swing upward for the reason that the locks engaging the shoulders or notches in the lower ends of the hooks will prevent their movement. The operating mechanism is placed along the keel of the boat and is consequently out of the way and is not liable to be broken or injured. By the use of my device the boat will be securely held against displacement by the sea and requires no handling after the hooks have been engaged by the rings.

Having thus described my invention, what I claim, and desire to secure by Letters Patcut, is

1. The combination of the hooks having notches in the lower ends, the locks arranged below said hooks and having projections engaging said notches, the operating-lever, and connections between the said operating-lever and the looks, as set forth.

2. The combination of the fork, the stop on the rear side of the same, the hook pivoted within the same and adapted to bear against said stop when closed and having lateral olfsets adapted to rest against the rear side of the fork when the hook is opened, and means for operating the said hooks, substantially as described.

3. The combination of the fork, the hook pivoted within the same and having lateral offsets adapted to rest against the rear side thereof when the hook is opened, and means for operating the said hooks, substantially as described.

el. The combination of the forks, the hooks pivoted in the said forks and having notches in their lower ends and provided witholfsets on their sides adapted to rest against the rear side of the fork when the hooks are opened, the locks having projections engaging said notches, the operating-lever, and connections between the said operating-lever andthe looks, as set forth.

5. The combination of the fork, the stop on the rear side of the same, the hook pivoted within the same and bearing against the stop when closed, and means for operating the said hook, substantially as described.

In testimony whereof I affix my signature in the presence of two witnesses.

MICHAEL VVOGAN.

\Vitnesses:

J. B. HINKSON, J os. ll. HINKSON. 

